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Finding the Fourth Proportional to 98,199.84, 135,517.36 and 55,759.52

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Solution

The fourth proportional to 98,199.84, 135,517.36 and 55,759.52 is: 76,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,199.84 : 135,517.36 = 55,759.52 : x
  2. Step 2: Convert to fraction form
    98,199.84/135,517.36 = 55,759.52/x
  3. Step 3: Cross multiply
    98,199.84x = 135,517.36 × 55,759.52
  4. Step 4: Simplify right side
    98,199.84x = 7,556,382,945.27
  5. Step 5: Solve for x
    x = 7,556,382,945.27/98,199.84
  6. Step 6: Final answer
    x = 76,949.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.